8015425280 has 72 divisors (see below), whose sum is σ = 19271649600. Its totient is φ = 3194114048.

The previous prime is 8015425279. The next prime is 8015425283. The reversal of 8015425280 is 825245108.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8015425280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8015425283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332681 + ... + 355959.

It is an arithmetic number, because the mean of its divisors is an integer number (267661800).

Almost surely, 2^8015425280 is an apocalyptic number.

8015425280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8015425280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9635824800).

8015425280 is an abundant number, since it is smaller than the sum of its proper divisors (11256224320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8015425280 is a wasteful number, since it uses less digits than its factorization.

8015425280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23569 (or 23555 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 8015425280 is about 89528.9075103678. The cubic root of 8015425280 is about 2001.2846147059.

The spelling of 8015425280 in words is "eight billion, fifteen million, four hundred twenty-five thousand, two hundred eighty".